.. the halo effect is a well-documented psychological bias, where a person has one trait that you like, and your positive feelings about this spill over to encompass the person as a whole. For example, if you find someone attractive, you’re also more likely to think of them as smart, considerate, approachable, and so on.
Research even shows that we tend to vote for the more attractive candidate in political elections. Something to keep in mind the next time you head to the polls!
Get the blinks for Influence, by Robert Cialdini.